Once you've burnt the last lump of coal, it's all gone, and the side effects of anthropogenic global warming are going to distract us from finding more lumps of coal long before we'll get to the last one.
The sun is going to keep on emitting photons at more or less the current rate for the next 5.4 billion years
after which it's utility as a power source will be compromised by it's evolution into a red giant with a diameter approaching the earth's current orbit and a couple of thousand times more luminosity than it now has.
The individual photons aren't renewable, but they will keep on coming for a while yet.